公开(公告)号：US10814387B2

公开(公告)日：2020-10-27

申请号：US14816101

申请日：2015-08-03

Applicant: General Electric Company

Inventor： Steven Hubert Rengers ,  Christian Xavier Stevenson ,  Charles Michael Welsh

IPC: B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22F3/105 ,  B29C64/153 ,  B29C64/357 ,  B22F3/00 ,  B29K105/00

Abstract: An additive manufacturing apparatus includes: a support surface configured to support a build platform thereon; a powder dispenser disposed above the support surface, the powder dispenser configured to dispense powder, and movable laterally over the support surface; a scraper moveable over the build platform and configured to scrape powder dispensed thereon by the powder dispenser, so as to provide a layer increment of powder above the build platform; and a directed energy source configured to melt and fuse the layer increment of powder in predetermined pattern so as to form a part.

公开(公告)号：US11027491B2

公开(公告)日：2021-06-08

申请号：US17031085

申请日：2020-09-24

Applicant: General Electric Company

Inventor： Steven Hubert Rengers ,  Christian Xavier Stevenson ,  Charles Michael Welsh

IPC: B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/153 ,  B29C64/357 ,  B22F10/00 ,  B22F10/10 ,  B29K105/00

Abstract: A method of making a part by an additive manufacturing process includes the steps of: (a) supporting a build platform on a support surface; (b) traversing a powder dispenser positioned above the support surface across the build platform, while dispensing powder from the powder dispenser, so as to deposit the powder over the build platform; (c) traversing the build platform with a scraper to scrape the deposited powder, so as to form a layer increment of powder; (d) using a directed energy source to fuse the layer increment of powder in a pattern corresponding to a cross-sectional layer of the part; and (e) repeating in a cycle steps (b) through (d) to build up the part in a layer-by-layer fashion.

公开(公告)号：US20210001556A1

公开(公告)日：2021-01-07

申请号：US17031085

申请日：2020-09-24

Applicant: General Electric Company

Inventor： Steven Hubert Rengers ,  Christian Xavier Stevenson ,  Charles Michael Welsh

IPC: B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B22F3/105 ,  B29C64/153 ,  B29C64/357 ,  B22F3/00

Abstract: A method of making a part by an additive manufacturing process includes the steps of: (a) supporting a build platform on a support surface; (b) traversing a powder dispenser positioned above the support surface across the build platform, while dispensing powder from the powder dispenser, so as to deposit the powder over the build platform; (c) traversing the build platform with a scraper to scrape the deposited powder, so as to form a layer increment of powder; (d) using a directed energy source to fuse the layer increment of powder in a pattern corresponding to a cross-sectional layer of the part; and (e) repeating in a cycle steps (b) through (d) to build up the part in a layer-by-layer fashion.